Fatal error on installing free modules from addons.prestashop.com

[Alecra Shop 0]

I need some help. I installed various modules from addons.prestashop.com such as ebay, paypal, sofort, etc.

 

Uploading them as a zip was no problem, but as soon as I tried installing them the problems began.

 

1. I receive a "safety" warning, even though I downloaded them from prestashop.

2. When I install them, I get a white page with the following error:

 

Fatal error in module errors:

syntax error, unexpected ''caecb49a7eec394177d054db34995' (T_ENCAPSED_AND_WHITESPACE), expecting

 

3. Now my modules page in the backend shows the same message.

 

 

Please can someone help me?

 

Thanks